Answer:
1.The President is responsible for implementing and enforcing the laws written by Congress and, to that end, appoints the heads of the federal agencies, including the Cabinet.
2.During the 20th century, the role of the vice president has evolved into more of an executive branch position. Now, the vice president is usually seen as an integral part of a president's administration and presides over the Senate only on ceremonial occasions or when a tie-breaking vote may be needed.
3.Cabinet's role is to advise the President on any subject he may require relating to the duties of each member's respective office.
4.The White house staff control access to the Oval Office and the president. Manage communications and information flow. Negotiate with Congress, executive branch agencies, and external political groups to implement the president's agenda.
